Miele CM6110 Product Manual - Page 14
Water hardness 14, Determining the water hardness, Setting the water hardness level
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First use Water hardness Determining the water hardness The water hardness level indicates how much calcium is dissolved in the water. The higher the calcium content, the harder the water, and the harder the water, the more often the coffee system will need to be descaled. You can measure the water hardness yourself using the enclosed test strip. Alternatively, your local water authority will be able to tell you the hardness of water in your area. The coffee system measures the amount of water used and steam made. Depending on the level of water hardness set, more or fewer drinks can be dispensed before the appliance needs to be descaled. Program the coffee system to the water hardness level of your area so that it functions correctly and does not get damaged. At the correct time a prompt will then appear in the display to descale the appliance. You can program four hardness levels on the machine: Water hardness Water hardness level in your area Setting (water hardness level) 0 - 8.7 gr/gal Soft (0 - 8.4 °dH) Soft 1 8.7 - 14.6 gr/gal Medium (8.4 - 14 °dH) Medium 2 14.6 - 21.2 gr/gal Hard (14 - 21 °dH) Hard 3 ö 21.2 gr/gal (ö 21 °dH Hard Very hard 4 ^ Dip the strip in your drinking water for approximately one second, then shake off any excess water. The result will be evident after about a minute. You can now set the water hardness level for the coffee system. Setting the water hardness level ^ Touch X . ^ Use the arrow keys to highlight "Water hardness". Then touch OK. ^ Use the arrow keys to highlight the desired water hardness. Then touch OK. The setting is now saved. 14